At the fourth camp and on the fourth day, the natoas bundle is opened, or its formal ritual demonstrated. Early in the day another tipi is pitched before the medicine tipi and the covers are joined, thus enlarging the space and providing for a few spectators. A few men and women are invited to assist in the ceremony: the men use the rattles and with the women aid in the singing. The father and other men sit on the north side of the tipi, the former next the medicine woman's husband; and the other women sit on the south side, the mother next to the medicine woman. She directs the medicine woman and the singing of the other women. The ceremony opens at about ten A. M. with the first series of songs in the ritual. Three men hold a rattle in each hand, beating them upon the rawhide by a vigorous downward forward stroke, the seventh rattle is used by the father. The ritual of the natoas will be found in Volume 7, pp. 215-220. Normally, this ceremony transfers the natoas to the daughter. She may, however, waive the right, in which case the bundle returns to the former owner. Yet, she seems to enjoy all the privileges accorded to one having been an owner. Theoretically, no one can perform a transfer ceremony without having first owned the bundle in question. In case of the natoas, even now, a beaver owner is regarded as competent to conduct the proceeding, though he may never have gone through the ritual with his wife. This is consistent with the tradition that formerly the natoas was a part of the beaver bundle.[6] Yet, the conditions here are slightly different from those for other bundles in that the father must provide or is charged with the responsibility to see that a natoas is provided. Following the vow, either he or the son makes formal application to the owner of a natoas by the usual presentation of a pipe.[7] When the daughter begins her fasting, the father has the natoas brought to her tipi. As a rule, the father's wife owns a natoas. Some informants claim that even should the daughter own a natoas, the father must provide another. On the other hand, the daughter can select the eligible natoas. In any case, the father furnishes the daughter with a dress and an elk robe for which he must be paid liberally.[8]